NOUN (3)

1. a report published by the British government; bound in blue;

2. a register of persons who are socially prominent;

3. a blue booklet used in universities for writing examinations;

The Collaborative International Dictionary of English v.0.48:

Blue book \Blue" book`\
   1. A parliamentary publication, so called from its blue paper
      covers. [Eng.]
      [1913 Webster]

   2. The United States official "Biennial Register."
      [1913 Webster] Bluebottle

WordNet (r) 3.0 (2006):

blue book
    n 1: a report published by the British government; bound in blue
    2: a register of persons who are socially prominent
    3: a blue booklet used in universities for writing examinations

The Free On-line Dictionary of Computing (19 January 2023):

Blue Book

   1.  Informal name for one of the four standard
   references on the page-layout and graphics-control language
   PostScript.  The other three official guides are known as
   the Green Book, the Red Book, and the White Book.

   ["PostScript Language Tutorial and Cookbook", Adobe Systems,
   Addison-Wesley 1985, (ISBN 0-201-10179-3)].

   2.  Informal name for one of the three standard
   references on Smalltalk.  This book also has green and red
   siblings.

   ["Smalltalk-80: The Language and its Implementation", David
   Robson, Addison-Wesley 1983, (ISBN 0-201-11371-63)].

   3.  Any of the 1988 standards issued by the
   ITU-T's ninth plenary assembly.  These include, among other
   things, the X.400 electronic mail specification and the
   Group 1 through 4 fax standards.

   See also book titles.

   [Jargon File]

   (1995-10-12)